You don't have to question the (a) deep essence of yourself, or (b) your sanity.
I offer a third option.
Instead, consider questioning (c) how you felt based on what you knew about a given event at the time your feelings registered about it.
For instance, few will argue with the concept of "allowing one's self to become wiser as time moves on, and our knowledge and experience grows."
So, is it not also appropriate to consider "allowing yourself to feel differntly about things than you did in the past, based on what you've learned since those feelings were formed?"